Pith Number

pith:RO3XI5GN

pith:2020:RO3XI5GNJZBD5L3Q2RPGOE6NNQ

not attested not anchored not stored refs pending

Digital Contact Tracing Service: An improved decentralized design for privacy and effectiveness

Anatol Pomplun, Andrea Turcati, Birgit Neumair, Christian Djeffal, Christian Fruck, Christian Haack, Christian Romberg, Christopher Allan, Christoph Steinlehner, Christoph Wiesinger, Clara Fischer, Dirk Heckmann, Elisa Resconi, Esteban Barco, Georg Carle, Giovanni Zattera, Jasin Islami, J\"orn Buchwald, Judith Gampe, Julia Pollmann, Kai Bitterschulte, Kilian Holzapfel, Linus Lotz, Lolian Shtembari, Lorenz Marx, Martina Karl, Martin H\"acker, Matthias Neumair, Michael K\"oppl, Nele Quast, Patrick Krause, Philipp H. Kindt, Sebastian Preisner, Stefan Sch\"onert, Stephan Meighen-Berger, Tina Pollmann, Tjark Ziehm

arxiv:2006.16960 v1 · 2020-06-29 · cs.CY

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RO3XI5GNJZBD5L3Q2RPGOE6NNQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T01:14:59.823035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bb77474cd4e423eaf70d45e6713cd6c0b626f415607e88a3193235411c3346c

Aliases

arxiv: 2006.16960 · arxiv_version: 2006.16960v1 · doi: 10.48550/arxiv.2006.16960 · pith_short_12: RO3XI5GNJZBD · pith_short_16: RO3XI5GNJZBD5L3Q · pith_short_8: RO3XI5GN

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/RO3XI5GNJZBD5L3Q2RPGOE6NNQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8bb77474cd4e423eaf70d45e6713cd6c0b626f415607e88a3193235411c3346c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0fc959fdfb8919716acac0cc8655b9f4789decb268853bccd71d874f869d0a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2020-06-29T13:12:07Z",
    "title_canon_sha256": "2e2f3910ef38d6d6310cbd609aac1c893f81b7e7d344bade37cfd5b64fa79071"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.16960",
    "kind": "arxiv",
    "version": 1
  }
}